CN202081409U - Initial dam structure of ash storage field built of ash and slag - Google Patents
Initial dam structure of ash storage field built of ash and slag Download PDFInfo
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- CN202081409U CN202081409U CN2011201916479U CN201120191647U CN202081409U CN 202081409 U CN202081409 U CN 202081409U CN 2011201916479 U CN2011201916479 U CN 2011201916479U CN 201120191647 U CN201120191647 U CN 201120191647U CN 202081409 U CN202081409 U CN 202081409U
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- dam
- ash
- dam body
- trapezoidal
- lime
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- 239000002893 slag Substances 0.000 title abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- 239000002689 soil Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000004576 sand Substances 0.000 claims description 22
- 239000004746 geotextile Substances 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000002985 plastic film Substances 0.000 claims description 6
- 229920006255 plastic film Polymers 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 239000004575 stone Substances 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract 2
- 239000002956 ash Substances 0.000 description 38
- 238000000151 deposition Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 241000958526 Cuon alpinus Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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Abstract
The utility model discloses an initial dam structure of an ash storage field built of ash and slag, wherein the main body of the initial dam structure is a trapezoidal dam body, and an anti-seepage system is arranged at the upstream dam surface of the trapezoidal dam body; and an embankment slope drainage system is arranged at the downstream dam surface of the trapezoidal dam body from a dam bottom to at least the height of a seepage spilling point. The utility model has the advantages of waste utilization, reduction in environmental destruction, utilization of the ash and slag which are originally stored in the ash storage field as wastes, reduction in the exploitation of a large amount of soil and stone materials thereby reducing the destruction of natural environment, and reduction in construction cost; in the utility model, the ash and slag which are the inherent product of a coal-fired power plant are adopted for dam building so as to have low material cost and reduce the construction cost of the ash field; and besides, the ash storage capacity of the old ash storage field is emptied out to increase the ash storage amount of the old ash storage field and the like.
Description
Technical field
The utility model relates to a kind of ash disposal area initial dam structure, particularly relates to a kind of ash disposal area initial dam structure that builds up with lime-ash.
Background technology
The lime-ash that coal dust firing generating back, coal-burning power plant produces need be delivered to ash disposal area and deposit.The wet type ash disposal area is storage one of grey mode, and lime-ash mixes with water in power plant, again by line transportation to ash disposal area, behind the ash deposition, the primary water more than the red dog will be discharged by drainage system.Ash disposal area is exactly to build embankment around to form storage capacity storing grey aqueous mixtures, but the embankment built by separate periods, the initial stage directly the embankment of seat in natural ground be initial dam, about the general 5～10m of height of dam; After the storage capacity of initial dam formation piles with, continue to strengthen storage capacity as need, the upstream, dam builds sub-dam in the early stage, about every grade of general 3～5m height in sub-dam.Initial dam and sub-dam all need satisfy the kinetic stability under analysis of seepage flow stability and the geological process.And initial dam is even more important as its stability of foundation of embankment.
Ash dyke generally is used for the sub-dam heightening of ash disposal area at present, promptly builds sub-dam with earth and stone material or grey slag charge before the ash disposal area dam on the lime-ash beach face that deposits.About every grade of general 3～5m height in sub-dam, the upstream and downstream grade of side slope is generally delayed in 1: 3.In order to reduce the phreatic line in the sub-dam, system is oozed in the row of setting in the dam, and generally embedding vertical and horizontal row is oozed flexible pipe or water seepage drainage mattress pad at the bottom of the dam.There is following shortcoming in existing ash dyke: 1, the earth and rockfill dam cost of building a dam is higher, needs the native stone material amount of digging big, natural environment is destroyed big; 2, existing ash dyke only is used for the sub-dam heightening of ash disposal area, has limited the range of application of ash dyke, and the volume of comprehensive utilization of lime-ash is little; 3, existing ash dyke generally only the row of setting ooze system, and lack seepage control system, be unfavorable for reducing the phreatic line in the sub-dam, if phreatic line is higher,, need the side slope of dam body is slowed down, so the dam material consumption is many in order to guarantee the stable of dam body.
The utility model content
The purpose of this utility model is to provide a kind of ash disposal area initial dam structure that builds up with lime-ash.
The purpose of this utility model is implemented by following technical scheme, a kind of ash disposal area initial dam structure that builds up with lime-ash, its main body is trapezoidal dam body, the upstream dam facing of described trapezoidal dam body is provided with seepage control system, the downstream dam facing of described trapezoidal dam body goes out to overflow to seepage flow at least at the bottom of the dam and a little highly is provided with the drain on embankment slope system, the downstream dam facing of described trapezoidal dam body is by the domatic powder soil horizon or the argillic horizon of being coated with at described drain on embankment slope system top to described trapezoidal dam body top, described powder soil horizon or argillic horizon top are turf plantation layer, described trapezoidal dam body bottom surface longitudinally midline is provided with the system of oozing of arranging, described row is oozed system by horizontal drainage pipe, vertically drainage pipe and sand gravel water seepage drainage mattress pad are formed, absolute altitude inclined downstream at the bottom of the described sand gravel water seepage drainage mattress pad, described vertical drainage pipe and described sand gravel water seepage drainage mattress pad are vertically arranged along described trapezoidal dam body, described horizontal drainage pipe is along described trapezoidal dam body lateral arrangement, described horizontal drainage pipe one end is positioned at described sand gravel water seepage drainage mattress pad and corresponding with a port of described vertical drainage pipe, the row that the other end passes described trapezoidal dam body downstream dam facing is oozed system, and the top of described trapezoidal dam body from top to bottom is followed successively by: mud knot macadam and argillic horizon.
Described seepage control system from top to bottom is respectively: plain concrete plate, polyethylene plastic film and composite geo-membrane, the upstream dam facing of described composite geo-membrane and described trapezoidal dam body fits tightly.
Described drain on embankment slope system from top to bottom is respectively: placed rockfill rib body, sand-gravel cushion and drainage system geotextiles, described drainage system geotextiles fits tightly along the downstream dam facing of described trapezoidal dam body.
Described trapezoidal dam body is built up by lime-ash.
Described sand gravel water seepage drainage mattress pad is surrounded by the sand gravel that row oozes system's geotextiles by the outside and constitutes.
Leave seam between the described plain concrete plate with the plank filling.
Enter the moisture of dam body inside, can form from the up stream slope seepage flow of direction for the downstream.The end face trace of seepage flow is the low curve in high back before phreatic line is, when seepage pressure was big, seepage flow may overflow the formation free flow from the downstream dam facing.Seepage flow can be taken away grey solid impurity particle and cause collapsing of dam body, and when phreatic line is higher, may in the dam body certain limit liquefaction phenomenon take place as earthquake, thereby influences the stability of dam body.
The utility model adopts the principle of " going up anti-row down ", and domatic laying composite geo-membrane, polyethylene plastic film prevent that percolating water from entering dam body inside in the dam body upstream, protect at surface casting one deck plain concrete plate then.The transmission coefficient of composite geo-membrane, polyethylene plastic film all can reach 10
-12The cm/s order of magnitude, and can form double shielding, as long as guarantee the integrality of the laying of construction period, the amount of seepage that generally enters dam body inside can be seldom.Midline and downstream base of dam are provided with water seepage drainage mattress pad respectively at the bottom of the dam, and water seepage drainage mattress pad is made of sand gravel outsourcing geotextiles, has good water seepage drainage effect, and the moisture in the dam body is oozed to sand gravel rapidly.The geotechnique is furnished with anti-filter function, and existing higher permeability can prevent the loss of grey solid impurity particle again.Between water seepage drainage mattress pad, bury vertical and horizontal row underground and ooze flexible pipe, form netted row and ooze system, seepage water in the dam is drained into outside the dam, effectively reduce phreatic line in the dam.The downstream base of dam adopts the placed rockfill drain on embankment slope, and the contact surface of placed rockfill and flyash dam body is also filtered by geotextiles is counter, has both discharged the seepage flow water yield, prevents that again grey solid impurity particle is along with seepage water runs off.Anti-, draining multiple defence line by above structure fully reduce phreatic line in the dam, guarantee the stable of dam body.
Advantage of the present utility model is, (1) twice laid reduces environmental disruption, and the former lime-ash of depositing in the ash disposal area as refuse is utilized, and has reduced the exploitation of a large amount of earth and stone materials, thereby has reduced the destruction to natural environment; (2) reduce construction costs, the utility model adopts the product lime-ash of coal-burning power plant self to build a dam, and Master Cost is cheap, has reduced grey construction costs.And the grey storage capacity of depositing of old ash disposal area that soared, the storage ash that has increased old ash disposal area is measured; (3) reduced phreatic line, because the utility model is provided with seepage control system and row is oozed system in the dam, can effectively reduce the height of the phreatic line dam in, stable to reach seepage stability favourable to dam body.
Description of drawings
Fig. 1 is a kind of ash disposal area initial dam cross-sectional view that builds up with lime-ash.
Trapezoidal dam body 1, plain concrete plate 2, polyethylene plastic film 3, composite geo-membrane 4, placed rockfill rib body 5, sand-gravel cushion 6, drainage system geotextiles 7, powder soil horizon 8, turf plantation layer 9, horizontal drainage pipe 10, vertical drainage pipe 11, sand gravel water seepage drainage mattress pad 12, mud knot macadam 13, argillic horizon 14, upstream dam facing 15, downstream dam facing 16, row is oozed system's geotextiles 17, sand gravel 18.
The specific embodiment
Embodiment 1: a kind of ash disposal area initial dam structure that builds up with lime-ash, the trapezoidal dam body 1 of its main body for building up by lime-ash, the upstream dam facing 15 of trapezoidal dam body 1 is provided with seepage control system, seepage control system from top to bottom is respectively: plain concrete plate 2, polyethylene plastic film 3 and composite geo-membrane 4, leave seam between the plain concrete plate 2 with the plank filling, composite geo-membrane 4 fits tightly with the upstream dam facing 15 of trapezoidal dam body 1, the downstream dam facing 16 of trapezoidal dam body 1 a little highly is provided with the drain on embankment slope system from going out to overflow to seepage flow at the bottom of the dam, the drain on embankment slope system from top to bottom is respectively: placed rockfill rib body 5, sand-gravel cushion 6 and drainage system geotextiles 7, drainage system geotextiles 7 fits tightly along the downstream dam facing 16 of trapezoidal dam body 1, the downstream dam facing 16 of trapezoidal dam body 1 is by the domatic powder soil horizon 8 that is coated with at drain on embankment slope system top to trapezoidal dam body 1 top, powder soil horizon 8 tops are turf plantation layer 9, trapezoidal dam body 1 bottom surface longitudinally midline is provided with the system of oozing of arranging, row is oozed system by horizontal drainage pipe 10, vertically drainage pipe 11 and sand gravel water seepage drainage mattress pad 12 are formed, and sand gravel water seepage drainage mattress pad 12 is surrounded by row by the outside and oozes the sand gravel 18 of system's geotextiles 17 and constitute.12 end of sand gravel water seepage drainage mattress pad absolute altitude inclined downstream, vertically drainage pipe 11 and sand gravel water seepage drainage mattress pad 12 are vertically arranged along trapezoidal dam body 1, laterally drainage pipe 10 is along trapezoidal dam body 1 lateral arrangement, laterally drainage pipe 10 1 ends are positioned at sand gravel water seepage drainage mattress pad 12 and corresponding with a port of vertical drainage pipe 11, the row that the other end passes trapezoidal dam body 1 downstream dam facing 16 is oozed system, and the top of trapezoidal dam body 1 from top to bottom is followed successively by: mud knot macadam 13 and argillic horizon 14.
Claims (6)
1. ash disposal area initial dam structure that builds up with lime-ash, its main body is trapezoidal dam body, it is characterized in that, the upstream dam facing of described trapezoidal dam body is provided with seepage control system, the downstream dam facing of described trapezoidal dam body goes out to overflow to seepage flow at least at the bottom of the dam and a little highly is provided with the drain on embankment slope system, the downstream dam facing of described trapezoidal dam body is by the domatic powder soil horizon or the argillic horizon of being coated with at described drain on embankment slope system top to described trapezoidal dam body top, described powder soil horizon or argillic horizon top are turf plantation layer, described trapezoidal dam body bottom surface longitudinally midline is provided with the system of oozing of arranging, described row is oozed system by horizontal drainage pipe, vertically drainage pipe and sand gravel water seepage drainage mattress pad are formed, absolute altitude inclined downstream at the bottom of the described sand gravel water seepage drainage mattress pad, described vertical drainage pipe and described sand gravel water seepage drainage mattress pad are vertically arranged along described trapezoidal dam body, described horizontal drainage pipe is along described trapezoidal dam body lateral arrangement, described horizontal drainage pipe one end is positioned at described sand gravel water seepage drainage mattress pad and corresponding with a port of described vertical drainage pipe, the row that the other end passes described trapezoidal dam body downstream dam facing is oozed system, and the top of described trapezoidal dam body from top to bottom is followed successively by: mud knot macadam and argillic horizon.
2. a kind of ash disposal area initial dam structure that builds up with lime-ash according to claim 1, it is characterized in that, described seepage control system from top to bottom is respectively: plain concrete plate, polyethylene plastic film and composite geo-membrane, the upstream dam facing of described composite geo-membrane and described trapezoidal dam body fits tightly.
3. a kind of ash disposal area initial dam structure that builds up with lime-ash according to claim 1, it is characterized in that, described drain on embankment slope system from top to bottom is respectively: placed rockfill rib body, sand-gravel cushion and drainage system geotextiles, described drainage system geotextiles fits tightly along the downstream dam facing of described trapezoidal dam body.
4. a kind of ash disposal area initial dam structure that builds up with lime-ash according to claim 1 is characterized in that described trapezoidal dam body is built up by lime-ash.
5. a kind of ash disposal area initial dam structure that builds up with lime-ash according to claim 1 is characterized in that, described sand gravel water seepage drainage mattress pad is surrounded by the sand gravel that row oozes system's geotextiles by the outside and constitutes.
6. a kind of ash disposal area initial dam structure that builds up with lime-ash according to claim 2 is characterized in that, leaves the seam with the plank filling between the described plain concrete plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201916479U CN202081409U (en) | 2011-05-31 | 2011-05-31 | Initial dam structure of ash storage field built of ash and slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201916479U CN202081409U (en) | 2011-05-31 | 2011-05-31 | Initial dam structure of ash storage field built of ash and slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202081409U true CN202081409U (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201916479U Expired - Fee Related CN202081409U (en) | 2011-05-31 | 2011-05-31 | Initial dam structure of ash storage field built of ash and slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202081409U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631425A (en) * | 2014-12-18 | 2015-05-20 | 河南省电力勘测设计院 | Method for accelerating seepage eliminating and solidification of coal ash |
| CN106400743A (en) * | 2016-09-22 | 2017-02-15 | 南昌大学 | Filtration structure for dam |
| CN106836123A (en) * | 2017-03-28 | 2017-06-13 | 阮文森 | Geomembrane anti-seepage drainage system for newly-built earth dam and for effecting a radical cure disease danger earth dam |
| CN112921905A (en) * | 2021-01-27 | 2021-06-08 | 中钢集团马鞍山矿山研究总院股份有限公司 | Construction method of novel initial dam suitable for upstream type tailing pond |
| CN112921904A (en) * | 2021-01-27 | 2021-06-08 | 中钢集团马鞍山矿山研究总院股份有限公司 | A clay initial dam structure for upstream formula tailing storehouse |
-
2011
- 2011-05-31 CN CN2011201916479U patent/CN202081409U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631425A (en) * | 2014-12-18 | 2015-05-20 | 河南省电力勘测设计院 | Method for accelerating seepage eliminating and solidification of coal ash |
| CN106400743A (en) * | 2016-09-22 | 2017-02-15 | 南昌大学 | Filtration structure for dam |
| CN106836123A (en) * | 2017-03-28 | 2017-06-13 | 阮文森 | Geomembrane anti-seepage drainage system for newly-built earth dam and for effecting a radical cure disease danger earth dam |
| CN112921905A (en) * | 2021-01-27 | 2021-06-08 | 中钢集团马鞍山矿山研究总院股份有限公司 | Construction method of novel initial dam suitable for upstream type tailing pond |
| CN112921904A (en) * | 2021-01-27 | 2021-06-08 | 中钢集团马鞍山矿山研究总院股份有限公司 | A clay initial dam structure for upstream formula tailing storehouse |
| CN112921904B (en) * | 2021-01-27 | 2022-03-15 | 中钢集团马鞍山矿山研究总院股份有限公司 | A clay initial dam structure for upstream formula tailing storehouse |
| CN112921905B (en) * | 2021-01-27 | 2022-03-15 | 中钢集团马鞍山矿山研究总院股份有限公司 | Construction method of initial dam suitable for upstream type tailing pond |
| WO2022160713A1 (en) * | 2021-01-27 | 2022-08-04 | 中钢集团马鞍山矿山研究总院股份有限公司 | Method for constructing novel starter dam suitable for upstream tailings pond |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: INNER MONGOLIA ELECTRIC POWER SURVEY DESIGN INSTIT Free format text: FORMER NAME: INNER MONGOLIA ELECTRICAL POWER INVESTIGATE AND DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 010020 the Inner Mongolia Autonomous Region Hohhot City Xilin Road No. 209 Patentee after: INNER MONGOLIA ELECTRIC POWER SURVEY & DESIGN INSTITUTE CO., LTD. Address before: 010020 the Inner Mongolia Autonomous Region Hohhot City Xilin Road No. 209 Patentee before: Inner Mongolia Electric Power Survey Design Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20200531 |